Using dos command, how can I change the content of the quotes on every loop

Hello team,

i want to use the dos command for a program. I need to change the quotes on every loop in order to avoid increasing the size of the program.

Example

dos('xform -ry %1.0f -t %1.0f %1.0f %1.0f something.rad',deg,x,y,z)

This is what I want to create. How can I do this using Dos command, or do you have anything else to suggest.

Thank you in advance

Sotiris Papantoniou

Answer 1

[Walter Roberson]

You mean something like,

dos(sprintf('xform -ry %1.0f -t %1.0f %1.0f %1.0f something.rad',deg,x,y,z))

Answer 2

[Jason Ross]

You could try building the command string in a loop outside the dos() call and then make the calls.

A simple example is as follows:

A=[1 2 3 4 5];
for i=1:1:5
  Ai = num2str(A(i));
  cmdstr = ['echome', ' ', Ai];
  dos(cmdstr);
end

Output looks like the following, but the number passed as an argument changes from 1 to 5:

c:\temp>echo "my argument is " 1  
"my argument is " 1 

ans =

       0

Notes:

1. You will likely want to do something with the result of the dos() command or check the return status, e.g. [status, result] = dos(command).
2. "echome" is a batch file in the current working directory that contains "echo "my arg is" %1". If you wanted to expand out to four arguments, you would add %2 %3 %4 to it. You would call "xform", but might want to use a toy example like this to get the formatting figured out first if xform takes a while to run.